[vsnet-grb-info 3408] GCN 060607: Swift-UVOT obswervations.
GCN Circulars
gcncirc at capella.gsfc.nasa.gov
Thu Jun 8 08:44:58 JST 2006
TITLE: GCN GRB OBSERVATION REPORT
NUMBER: 5243
SUBJECT: GCN 060607: Swift-UVOT obswervations.
DATE: 06/06/07 23:43:44 GMT
FROM: Samantha Oates at MSSL <sro at mssl.ucl.ac.uk>
S. R. Oates (UCL-MSSL), A. J. Blustin (UCL-MSSL), H. Z. Ziaeepour
(UCL-MSSL) report on behalf of the Swift/UVOT team:
The Swift/UVOT began observing the field of GRB 060607 at 05:15:12 on
2006-06-06, 179 s after the BAT trigger (Ziaeepour et al., GCN 5233). An
optical counterpart was detected in the V-band at a position (RA,DEC) (21h
58m 50.4s, -22d 29' 47.4'') (J2000) to within 0.5 arcsec. The optical
afterglow was detected in white, V, B and U filters. The non-detections in
the UV bands is consistent with reported redshift z=3 (Ledoux et al., GCN 5237).
The photometry results are given for the 7 filters below:
Filter T_Start(s) Exposure(s) Magnitude/3sig_UL
V 179 486.9 15.35 +/-0.09
V 7880 127.1 18.16 +/-0.33
B 5833 194.9 19.13 +/-0.18
B 7265 192.5 19.48 +/-0.28
U 7061 187.8 18.87 +/-0.34
W1 5429 1257 18.83 (3 sigma UL)
M2 6651 1075 20.47 (3 sigma UL)
W2 1843 383.1 19.97 (3 sigma UL)
WHITE 74 97.4 15.98 +/-0.15
WHITE 6037 188.4 18.89 +/-0.17
The values quoted above are not corrected for the expected Galactic
extinction E(B-V)=0.03
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